JPS5523563A - Computer system - Google Patents
Computer systemInfo
- Publication number
- JPS5523563A JPS5523563A JP9612978A JP9612978A JPS5523563A JP S5523563 A JPS5523563 A JP S5523563A JP 9612978 A JP9612978 A JP 9612978A JP 9612978 A JP9612978 A JP 9612978A JP S5523563 A JPS5523563 A JP S5523563A
- Authority
- JP
- Japan
- Prior art keywords
- address
- output
- bus
- simulation
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To facilitate simulation of I/O by storing previously a position, where I/O should be simulated, and making it possible to designate contents of I/O forcedly when this position agrees with the address of an I/O bus.
CONSTITUTION: Processing unit 1 in the swquence controller outputs the address of I/O periodically; and in case of data input, since the input which I/O circuit 2 puts on the bus appears after a bus delay time, it is fetched. In case of output, unit 1 generates strobe and writes it in I/O corcuit 2. When the address to be monitored which is written in simulation circuit 4 agrees with the address given from processing unit 1, input or output is generated forcedly in the output of a ROM in simulation unit 4 and effects the same function as a primary I/O. Thus, a forced I/O can be designated at an arbitrary point simply.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9612978A JPS5523563A (en) | 1978-08-09 | 1978-08-09 | Computer system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9612978A JPS5523563A (en) | 1978-08-09 | 1978-08-09 | Computer system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5523563A true JPS5523563A (en) | 1980-02-20 |
Family
ID=14156767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9612978A Pending JPS5523563A (en) | 1978-08-09 | 1978-08-09 | Computer system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5523563A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5984905A (en) * | 1982-08-27 | 1984-05-16 | フイリツプス・ペトロリユ−ム・コンパニ− | Olefin polymerization catalyst, manufacture and use |
JPH0895611A (en) * | 1994-09-28 | 1996-04-12 | Toshiba Corp | Programmable controller and its maintenance tool |
-
1978
- 1978-08-09 JP JP9612978A patent/JPS5523563A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5984905A (en) * | 1982-08-27 | 1984-05-16 | フイリツプス・ペトロリユ−ム・コンパニ− | Olefin polymerization catalyst, manufacture and use |
JPH0895611A (en) * | 1994-09-28 | 1996-04-12 | Toshiba Corp | Programmable controller and its maintenance tool |
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